I installed opencv[dnn] for windows 64-bit using vcpkg. Here's what ./vcpkg list returns
jsoncpp:x64-windows 1.9.1 jsoncpp is an implementation of a JSON reader an...
libjpeg-turbo:x64-windows 2.0.3 libjpeg-turbo is a JPEG image codec that uses SI...
liblzma:x64-windows 5.2.4-2 Compression library with an API similar to that ...
libpng:x64-windows 1.6.37-5 libpng is a library implementing an interface fo...
libwebp:x64-windows 1.0.2-7 Lossy compression of digital photographic images.
opencv4:x64-windows 4.1.1-3 computer vision library
opencv4[dnn]:x64-windows Enable dnn module
opencv4[jpeg]:x64-windows JPEG support for opencv
opencv4[opengl]:x64-windows opengl support for opencv
opencv4[png]:x64-windows PNG support for opencv
opencv4[tiff]:x64-windows TIFF support for opencv
opencv4[webp]:x64-windows WebP support for opencv
opengl:x64-windows 0.0-5 Open Graphics Library (OpenGL)[3][4][5] is a cro...
protobuf:x64-windows 3.10.0 Protocol Buffers - Google's data interchange format
tiff:x64-windows 4.0.10-8 A library that supports the manipulation of TIFF...
zlib:x64-windows 1.2.11-5 A compression library
So I think it's definitely there, and the line of code in visual studio #include <opencv2\dnn.hpp> does not throw any errors, but upon typing cv::dnn::Net net; I get the error that namespace cv::dnn has no member 'Net' even though I know that it does.
Then on compilation using Visual Studio 2019, I get a ton of errors in other files like in async.hpp which comes with OpenCV, saying
Error C3646 'CV_NOEXCEPT': unknown override specifier (compiling source file src\main.cpp) ...opencv2\core\async.hpp 34 and get more compilation errors in the following files:
- dnn.hpp
- async.hpp
- dict.hpp
- version.hpp
- layer.hpp
- dnn.inl.hpp
- interface_engine.hpp
I believe these are all linked to the dnn module being included.
Edit: I also installed jsoncpp using vcpkg and it works fine.
